Effects of plasmonic resonances and transparency of nanoshells for optical filtering
Y. B. Martynov+, R. G. Nazmitdinov*×, I. A. Tanachev+°, P. P. Gladyshev+°
+Institute of Applied Acoustics, 141980 Dubna, Russia
*Departament de Física, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain
×Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
°Dubna University, 141980 Dubna, Russia
We show that narrow optical band pass filters can be created by means of
nanoparticles which consist of a dielectric sphere and a metallic shell.
The components can be adjusted such that
there is a remarkable transparency at the desired
wavelength range, while a strong absorption takes place outside of this region.